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12345 [234]
3 years ago
9

Solve each equation (x+8)(x-2)=-9

Mathematics
2 answers:
Nesterboy [21]3 years ago
5 0
X=1, x=-7 would be the correct answer.
Reptile [31]3 years ago
4 0
Hi

1)(x+8)(x-2)=-9

<span><span><span>2) x​^2</span><span>​​</span></span>−2x+8x−16=−9  


</span><span>​3) x^2+6x−16=−9


</span><span><span>​4) x^2<span>​​</span></span>+6x−16+9=0


</span><span><span><span><span>​5) x^2</span><span>​​</span></span>+6x−7=0 </span>
6) (x−1)(x+7)=0


7) x=1,−7
<span>
I hope helped ^-^

I hope that you give me a brain
</span></span>



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chubhunter [2.5K]
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Shalnov [3]
Answer:
x³ - 3x² - 18x

Explanation:
Before we begin, remember the following:
xᵃ * xᵇ = xᵃ⁺ᵇ

Now, for the given:
To solve thus question, we will simply multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final answer.

This can be done as follows:
(x + 3)(x² - 6x)
x(x²) + x(-6x) + 3(x²) + 3(-6x)
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Hope this helps :)
7 0
3 years ago
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Can some please help me?? It’s do today also can you guys explain how to do it because it’s still More questions and I actually
Genrish500 [490]

Answer:

-3

Step-by-step explanation:

Slope of a line is "rise over run".  Pick two points on the line.  For example, (0,4) and (1,1).  As we move from the first point to the second, we move down 3 units and right 1 unit.  So the slope is -3/1 = -3.

Here's an algebraic approach.  If the two points are (x₁, y₁) and (x₂, y₂), then the slope is:

m = (y₂ − y₁) / (x₂ − x₁)

Plugging in our two points:

m = (1 − 4) / (1 − 0)

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3 0
3 years ago
A floor tile is shaped like a regular hexagon. The side lengths are 4 cm and the apothem 23‾√ cm.
Nata [24]

Answer:

<h2>41.57 cm²</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • geometry
  • PEMDAS
<h3>tips and formulas:</h3>
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<h3>let's solve:</h3>

parimeter of a regular hexagon:6a

therefore

=½×[4×6]×2√3 cm²

simplify parentheses:

=½×24×2√3 cm²

simplify fraction:

=24×√3 cm²

=41.57cm²

8 0
3 years ago
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Evaluate the expression if a = 4, b = 9, and c = 1.
uranmaximum [27]

Answer:

Given - a = 4

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3 years ago
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